Re: [Repeater-Builder] Re: Wouxun Radio
Yes, it can run split tone/code. I tried it to confirm it. But, it will not run both tone *and* code at the same time. If you select one, it 'zeroes out' the other. Joe M. n...@no6b.com wrote: I see from the manual that the TX RX CTCSS frequency settings are separate. I'm wondering if this HT can really run split tone (encode decode separate CTCSS freqs.). Simply having separate settings is by no means an indication that it can, since my Kenwood TM-G707 has separate settings but the RX CTCSS tone only affects what tone is used for BOTH encode decode when in CTCSS squelch mode (as opposed to encode only). Anyone here actually have one that they could try?
Re: [Repeater-Builder] (unknown)
After retiring from cellular/paging tech work after 20 years I had a box of about 100 or more keys that I kept in my truck. These were not equipment keys, but were site lock keys from shelters, buildings, etc. Locks were changed so many times at some of the sites and I always kept the old keys just in case. Some were marked, most were not. I spent a few early morning call-outs going thru the key box trying to get into a site, sometimes I was successful. This was probably one of the more frustrating parts of my job, getting to an abandoned warehouse in the wrong part of the city and spending lots of time trying to open a lock while I looked over my shoulder. I loved my job, but this is the part that I don't miss. 73, Joe, K1ike On 8/30/2010 11:26 AM, John wrote: Including all the different site keys John
Re: [Repeater-Builder] ariels
Hi Steve, Yup, Ariel was the mermaid in The Little Mermaid. Anyone who had a little girl in the house has this movie imprinted on their brain after seeing it replayed millions of times. If you waited long enough, the VHS tape finally broke Joe On 8/30/2010 12:03 PM, Steve wrote: How true Kev, Iam from the UK and it is spelt AERIAL. But I do know that others use ant, Ae, but it is common sense really 73 Steve
Re: [Repeater-Builder] Re: Wouxun Radio
Well, some will be appliance operators, but a few will take an interest and become the future of ham radio. We need the head count to keep our hobby alive and well. I've seen many new hams that had no background in electronics get their ticket by memorizing the test. They then dove into the hobby and became true assets to the hobby. Others just like to talk, and that's OK too. I guess I'm and optimist. Oh, I've been doing this ham radio since 1958, so I think I can say the above with some creditability. Welcome to all the new hams, no matter how you got your ticket. 73, Joe, K1ike On 8/31/2010 1:21 AM, Barry wrote: Much the same on the base permit here in Au but what do I know after 30+ years of yabering To: Repeater-Builder@yahoogroups.com From: glennmaill...@bellsouth.net Date: Mon, 30 Aug 2010 23:09:42 -0400 Subject: RE: [Repeater-Builder] Re: Wouxun Radio Welcome to the new hams that are taught the test and have no idea what the questions mean. 73 Glenn WB4UIV Ham of the old school. Had to draw schematics and understand what they were about to get my license.
RE: [Repeater-Builder] Re: Wouxun Radio
This year I am giving time to Jota and a 60ft tower and an ft857 and a gallon etc etc still I was a scout once roughing it out there is eating my fill and calling cq in the middle of the bush :) To: Repeater-Builder@yahoogroups.com From: k1ike_m...@snet.net Date: Tue, 31 Aug 2010 07:51:48 -0400 Subject: Re: [Repeater-Builder] Re: Wouxun Radio Well, some will be appliance operators, but a few will take an interest and become the future of ham radio. We need the head count to keep our hobby alive and well. I've seen many new hams that had no background in electronics get their ticket by memorizing the test. They then dove into the hobby and became true assets to the hobby. Others just like to talk, and that's OK too. I guess I'm and optimist. Oh, I've been doing this ham radio since 1958, so I think I can say the above with some creditability. Welcome to all the new hams, no matter how you got your ticket. 73, Joe, K1ike On 8/31/2010 1:21 AM, Barry wrote: Much the same on the base permit here in Au but what do I know after 30+ years of yabering To: Repeater-Builder@yahoogroups.com From: glennmaill...@bellsouth.net Date: Mon, 30 Aug 2010 23:09:42 -0400 Subject: RE: [Repeater-Builder] Re: Wouxun Radio Welcome to the new hams that are taught the test and have no idea what the questions mean. 73 Glenn WB4UIV Ham of the old school. Had to draw schematics and understand what they were about to get my license.
Re: [Repeater-Builder] Re: Wouxun Radio
If hams are being taught the test, given an exam, and then turned loose,
you get what you deserve... a bunch of untrained, undisciplined folks
who are of very little use (and possibly a determent) to the hobby. For
the clubs that are doing that, shame on them.
We've been doing ham-crams for over a year and have licensed well over
130 new hams. NONE of them have been turned loose and left to flounder
and NONE of them have turned out to be bad hams. Some of them were more
'challenging' than others but they all learn the right way to do things
with proper mentoring. Many of them are First Responders, so they are
already familiar with using the radios. We have to teach them the
theory BEHIND the microphone and deprogram them from using their
'normal' protocols when the pick up the amateur radio microphone, but it
all comes with time.
When I first joined my club 8 years ago, we had 6 or 7 people showing up
to the meetings. We now have 80+ paid members with 45 - 50 showing up
at each meeting. We've put up two new repeaters, become charter members
of a 2-meter Intertie system, have a D-STAR system in the works, added
APRS WX to one repeater site along with a WX Receiver/Warning System.
We're far from perfect, but we've come a LONG way through the
application of a little sweat-equity.
73,
Mike
WM4B
On Tue, Aug 31, 2010 at 7:51 AM, Joe wrote:
Well, some will be appliance operators, but a few will take an
interest and become the future of ham radio. We need the head
count to keep our hobby alive and well. I've seen many new hams
that had no background in electronics get their ticket by memorizing
the test. They then dove into the hobby and became true assets to
the hobby. Others just like to talk, and that's OK too. I guess
I'm and optimist.
Oh, I've been doing this ham radio since 1958, so I think I can say
the above with some creditability.
Welcome to all the new hams, no matter how you got your ticket.
73, Joe, K1ike
On 8/31/2010 1:21 AM, Barry wrote: Much the same on the base permit here
in Au
but what do I know after 30+ years of yabering
___
To: Repeater-Builder@yahoogroups.com
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From: glennmaill...@bellsouth.net
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Date: Mon, 30 Aug 2010 23:09:42 -0400
Subject: RE: [Repeater-Builder] Re: Wouxun Radio
Welcome to the new hams that are taught the test and have
no idea what the questions mean.
73
Glenn
WB4UIV
Ham of the old school.
Had to draw schematics and understand what they were about
to get my license.
javascript:parent.wgMail.openComposeWindow('glennmaill...@bellsouth.net')
http://docs.yahoo.com/info/terms/
[Repeater-Builder] Motorola t1500 parts
Hi guys .Does anyone know where I can get spare parts for a Motorola t1500 uhf cavity tin . The ones I have are setup as bandpass and I am looking for the notch loops Thank You, Ian Wells, Kerinvale Comaudio, 3A Murchison Street,Biloela.4715 Ph 0749922449 or 0409159932 www.kerinvalecomaudio.com.au
[Repeater-Builder] Re: Wouxun Radio
Is it really necessary to have over 1800 lines of text in a reply message? The poster only added a 2 line comment for 1800 lines of total message text, and those of us who are on digest have a hell of a time just scrolling through to get the meat of the messages. God help anyone who tried to pick it up on a mobile device. This last digest had over 7300 lines of text for only 25 messages. Most messages had 12 or less lines of new content, and it seems that the ones with the smallest new content forwarded the most leftover crap. Don't get me wrong, I've followed this list for years and really enjoy the discussions, but really? Help a guy out! Clip off the replies-to-replies-to-replies! 73, Rod N1FNE
Re: [Repeater-Builder] Re: Wouxun Radio
On 8/30/2010 11:50 PM, terry dalpoas wrote: Thanks Steve, that answered my question. I did not mean to start such a big discussion on this. The only reason I asked about the radio was some local hams said that they could not be used unless the radio is FCC approved. I told them that it did not matter whether it was approved or not (because home built equipment is not approved, and there's a lot of modified equipment on the bands), just as long as the transmitters are clean and do not cause interference and is ONLY transmitted on amateur frequencies, no commercial or public safety. I just wanted to verify what my belief was. Terry, KM5UQ I can't believe that there are so many that think ham rigs have to be type-accepted. The only testing is Part 15 testing that applies to any electronic equipment that might generate RF signals, including receivers, computers, etc. And it does not apply to home-made or kit radios. I'm not sure exactly how it's worded, but while Kenwood, Icom, etc have to have Part 15 testing, you making something in your basement do not. Now, maybe these Chinese radios don't have Part 15 approval? From: sbjohns...@aol.comsbjohns...@aol.com To: Repeater-Builder@yahoogroups.com Sent: Mon, August 30, 2010 8:40:33 AM Subject: [Repeater-Builder] Re: Wouxun Radio The original question was I saw some dual band portables on eBay, new for about $100, made by Wouxun. I doubt very much they are FCC type accepted. Is it okay to use these on amateur frequencies? There is NO requirement for hams to use only type-accepted equipment in the ham bands. You can build your own gear, modify any equipment, use commercially made gear of any kind, etc. Go for it if ... that's one of the main points of amateur radio. Steve sbjohns...@aol.com http://www.wd8das.net/ seriously ridiculous amount of snippage!!! C'mon folks!
[Repeater-Builder] Re: wouxun
Also saw a posting on e-ham that indicated only -30 dBc on harmonic spurious for the UHF side (I assume that's 2nd harmonic). I have an early KG-UVD1P (short DTMF burst) and an KG-UVD2D and can confirm this is not the case on neither radio, I measured -60dBc which makes them legal here. 73, Geert Jan PE1HZG
RE: [Repeater-Builder] Re: Wouxun Radio
Hello Repeater-Builder Group! IMHO, in the spirit of this GROUP, let's build some repeaters and send the Wouxun handy/talkie Radio discussion over to a young, growing GROUP devoted to that radio: wouxun_kg-uvd1p-subscr...@yahoogroups.com '73 kc5ozh It is not the class of license the Amateur holds, but the class of the Amateur that holds the license. Charles Mumphrey Amateur Radio Station Kc5ozh Repeater System: Rowlett Main: 441.325 MHz + 162.2 Dallas: 441.950 MHz + 162.2 Rowlett II: 441.950 MHz + 110.9 Rowlett III: 147.390 + 85.4 KC5OZH-R EchoLink Node: 350616 K5FER-L EchoLink Node: 394575 Rowlett R.A.C.E.S. Unit 808 ARO-Equipment http://www.CharliesElectronics.com
[Repeater-Builder] Re: Wouxun Radio
Come on guys. Is it really necessary to quote the whole Digest when replying to a thread? Ever heard of snip? This morning, digest #7424 was 183kb, 139 pages long! Jeesh!!! Al, K9SI
Re: Re: [Repeater-Builder] Running a Mastr II Repeater QRP
Installed a MSTR II VHF repeater in a six foot cabinet on top of a 17 story building. The elevator got me to the 14th floor but it took 4 of us to get it the other 3 flights. It is possible to haul without a hoist. Next time I do something like this I'm going to remove the repeater and power supply and carry the parts, not the whole repeater. ..._._ Aug 31, 2010 01:14:00 AM, Repeater-Builder@yahoogroups.com wrote: On 8/30/2010 7:01 PM, Paul Plack wrote: I already know I'd love to have a MII, and the bulk won't be an issue getting it home or storing it, but the proposed site is on a rooftop. That part could get interesting. I may need to devise a truss...and something to hoist the repeater, too! (Rimshot.) LOL! Especially if you're using the MASTR II power supply. Be aware that the M2 PS will draw quite a bit of current even at idle... if you're paying the power bill, or care about someone who does... I have one on in my basement for a link all the time, and live with it... :-)
Re: Re: [Repeater-Builder] Running a Mastr II Repeater QRP
Yes, a screwdriver is your friend. Chuck WB2EDV - Original Message - From: dmur...@verizon.net To: Repeater-Builder@yahoogroups.com Cc: Repeater-Builder@yahoogroups.com Sent: Tuesday, August 31, 2010 12:21 PM Subject: Re: Re: [Repeater-Builder] Running a Mastr II Repeater QRP Installed a MSTR II VHF repeater in a six foot cabinet on top of a 17 story building. The elevator got me to the 14th floor but it took 4 of us to get it the other 3 flights. It is possible to haul without a hoist. Next time I do something like this I'm going to remove the repeater and power supply and carry the parts, not the whole repeater.
RE: [Repeater-Builder] Duplexers
Wow this must of Really been a Dumb question , No one answered it Don KA9QJG From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of ka9qjg Sent: Monday, August 30, 2010 9:07 PM To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] Duplexers Since We are on the Topic of Duplexers, And some claim there is no such thing as a Dumb Question but at the Risk of Asking one I will take a chance , I have the Wacom 4 can on My 220 System, The Question I have in a non controlled environment such as No Heat or Air Will the Duplexer have any problems inside with Condensation from Heating up in use and Cooling down Thanks Don KA9QJG
Re: [Repeater-Builder] Duplexers
No problem. Most are in non-climate controlled environments. Chuck WB2EDV - Original Message - From: ka9qjg To: Repeater-Builder@yahoogroups.com Sent: Tuesday, August 31, 2010 1:42 PM Subject: RE: [Repeater-Builder] Duplexers Wow this must of Really been a Dumb question , No one answered it Don KA9QJG From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of ka9qjg Sent: Monday, August 30, 2010 9:07 PM To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] Duplexers Since We are on the Topic of Duplexers, And some claim there is no such thing as a Dumb Question but at the Risk of Asking one I will take a chance , I have the Wacom 4 can on My 220 System, The Question I have in a non controlled environment such as No Heat or Air Will the Duplexer have any problems inside with Condensation from Heating up in use and Cooling down Thanks Don KA9QJG
Re: [Repeater-Builder] Duplexers
I haven't seen problems from condensation. Now salt water corrosion from installations on a coast, that's a pretty big problem. I've got a set of cans where the invar has actually rusted, and the connectors were all shot. On Tue, Aug 31, 2010 at 10:42 AM, ka9qjg ka9...@wowway.com wrote: Wow this must of Really been a Dumb question , No one answered it Don KA9QJG *From:* Repeater-Builder@yahoogroups.com [mailto: repeater-buil...@yahoogroups.com] *On Behalf Of *ka9qjg *Sent:* Monday, August 30, 2010 9:07 PM *To:* Repeater-Builder@yahoogroups.com *Subject:* RE: [Repeater-Builder] Duplexers Since We are on the Topic of Duplexers, And some claim there is no such thing as a Dumb Question but at the Risk of Asking one I will take a chance , I have the Wacom 4 can on My 220 System, The Question I have in a non controlled environment such as No Heat or Air Will the Duplexer have any problems inside with Condensation from Heating up in use and Cooling down Thanks Don KA9QJG
RE: [Repeater-Builder] Duplexers
I have a set of Wacoms on 2-meters in a totally uncompensated shack, running from the teens in the winter to probably 150 in the summer. I've never had an issued. I have another set in a similar shack, but it it air conditioned in the summer. They've been out there for 10 years and are pristine. Last time I checked them for alignment, they were still perfect. 73, Mike WM4B On Tue, Aug 31, 2010 at 1:42 PM, ka9qjg wrote: Wow this must of Really been a Dumb question , No one answered it Don KA9QJG From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of ka9qjg Sent: Monday, August 30, 2010 9:07 PM To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] Duplexers Since We are on the Topic of Duplexers, And some claim there is no such thing as a Dumb Question but at the Risk of Asking one I will take a chance , I have the Wacom 4 can on My 220 System, The Question I have in a non controlled environment such as No Heat or Air Will the Duplexer have any problems inside with Condensation from Heating up in use and Cooling down Thanks Don KA9QJG http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] Duplexers
OK Great , Thanks to Everyone who answered , I will sleep better now one less thing to worry about Don KA9QJG From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of mwbese...@cox.net Sent: Tuesday, August 31, 2010 12:51 PM To: repeater-builder@yahoogroups.com Subject: RE: [Repeater-Builder] Duplexers I have a set of Wacoms on 2-meters in a totally uncompensated shack, running from the teens in the winter to probably 150 in the summer. I've never had an issued. I have another set in a similar shack, but it it air conditioned in the summer. They've been out there for 10 years and are pristine. Last time I checked them for alignment, they were still perfect. 73, Mike WM4B On Tue, Aug 31, 2010 at 1:42 PM, ka9qjg wrote: Wow this must of Really been a Dumb question , No one answered it Don KA9QJG From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of ka9qjg Sent: Monday, August 30, 2010 9:07 PM To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] Duplexers Since We are on the Topic of Duplexers, And some claim there is no such thing as a Dumb Question but at the Risk of Asking one I will take a chance , I have the Wacom 4 can on My 220 System, The Question I have in a non controlled environment such as No Heat or Air Will the Duplexer have any problems inside with Condensation from Heating up in use and Cooling down Thanks Don KA9QJG
RE: [Repeater-Builder] Duplexers
For there to be condensation there must be humidity in the air. The more humidity, the more condensation. Duplexers are in harsh environments now and I don't think it has been a problem. Condensation on the outside of the cans should not cause any issue for what is going inside. On Tue, 2010-08-31 at 12:42 -0500, ka9qjg wrote: Wow this must of Really been a Dumb question , No one answered it Don KA9QJG From:Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of ka9qjg Sent: Monday, August 30, 2010 9:07 PM To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] Duplexers Since We are on the Topic of Duplexers, And some claim there is no such thing as a Dumb Question but at the Risk of Asking one I will take a chance , I have the Wacom 4 can on My 220 System, The Question I have in a non controlled environment such as No Heat or Air Will the Duplexer have any problems inside with Condensation from Heating up in use and Cooling down Thanks Don KA9QJG
RE: [Repeater-Builder] Duplexers
Typically, you'll get condensation when you have high humidity (with
HIGH being a relative term) and rapid changes in temperature. Working
in an air-conditioned building and walking outside into a hot, Georgia
afternoon, my glasses and I are quite familiar with the scenario.
73,
Mike
WM4B
On Tue, Aug 31, 2010 at 2:08 PM, Chris Fowler wrote:
For there to be condensation there must be humidity in the air. The
more
humidity, the more condensation.
Duplexers are in harsh environments now and I don't think it has been a
problem. Condensation on the outside of the cans should not cause any
issue for what is going inside.
On Tue, 2010-08-31 at 12:42 -0500, ka9qjg wrote:
Wow this must of Really been a Dumb question , No one answered it
Don KA9QJG
From: Repeater-Builder@yahoogroups.com
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[mailto: Repeater-Builder@yahoogroups.com
javascript:parent.wgMail.openComposeWindow('Repeater-Builder@yahoogroups.com')
] On Behalf Of ka9qjg Sent: Monday, August 30, 2010 9:07 PM To:
Repeater-Builder@yahoogroups.com
javascript:parent.wgMail.openComposeWindow('Repeater-Builder@yahoogroups.com')
Subject: RE: [Repeater-Builder] Duplexers
Since We are on the Topic of Duplexers, And some claim there is no
such thing as a Dumb Question but at the Risk of Asking one I will
take a chance , I have the Wacom 4 can on My 220 System,
The Question I have in a non controlled environment such as No Heat or
Air
Will the Duplexer have any problems inside with Condensation from
Heating up in use and Cooling down
Thanks Don
KA9QJG
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Re: [Repeater-Builder] Duplexers
Wow... that's UGLY!
I wonder if a small heat-tape would prevent that from happening?
73,
Mike
WM4B
On Tue, Aug 31, 2010 at 2:17 PM, Roger Stacey wrote:
On Vancouver Island B.C we do have humidity. The site is at 4400 ft.
Roger
VA7RS
- Original Message -
From: Chris Fowler k...@k4fh.com
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To: Repeater-Builder@yahoogroups.com
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Cc: ka9qjg ka9...@wowway.com
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Sent: Tuesday, August 31, 2010 11:08 AM
Subject: RE: [Repeater-Builder] Duplexers
For there to be condensation there must be humidity in the air. The
more humidity, the more condensation.
Duplexers are in harsh environments now and I don't think it has been
a problem. Condensation on the outside of the cans should not cause
any issue for what is going inside.
On Tue, 2010-08-31 at 12:42 -0500, ka9qjg wrote:
Wow this must of Really been a Dumb question , No one answered it
Don KA9QJG
From: Repeater-Builder@yahoogroups.com
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[mailto: Repeater-Builder@yahoogroups.com
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] On Behalf Of ka9qjg Sent: Monday, August 30, 2010 9:07 PM To:
Repeater-Builder@yahoogroups.com
javascript:parent.wgMail.openComposeWindow('Repeater-Builder@yahoogroups.com')
Subject: RE: [Repeater-Builder] Duplexers
Since We are on the Topic of Duplexers, And some claim there is no
such thing as a Dumb Question but at the Risk of Asking one I will
take a chance , I have the Wacom 4 can on My 220 System,
The Question I have in a non controlled environment such as No Heat
or Air
Will the Duplexer have any problems inside with Condensation from
Heating up in use and Cooling down
Thanks Don
KA9QJG
Yahoo! Groups Links
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Re: [Repeater-Builder] Duplexers
Guess that I should answer it then. I have had a 4 can Wacom 220 mhz duplexer in a 6 foot by 6 foot building for around 20 years and it still works. Also in the same building is a Phelps Dodge 6 can 146 mhz duplexer that has been there for about 35 years. This is in the middle of North Carolina where it gets up to around 100 in the summer and around 15 deg in the winter. The building only has a couple of repeaters in it and is not heated or cooled. Made out of cinder blocks. From: ka9qjg ka9...@wowway.com To: Repeater-Builder@yahoogroups.com Sent: Tue, August 31, 2010 1:42:32 PM Subject: RE: [Repeater-Builder] Duplexers Wow this must of Really been a Dumb question , No one answered it Don KA9QJG From:Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of ka9qjg Sent: Monday, August 30, 2010 9:07 PM To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] Duplexers Since We are on the Topic of Duplexers, And some claim there is no such thing as a Dumb Question but at the Risk of Asking one I will take a chance , I have the Wacom 4 can on My 220 System, The Question I have in a non controlled environment such as No Heat or Air Will the Duplexer have any problems inside with Condensation from Heating up in use and Cooling down Thanks Don KA9QJG
Re: [Repeater-Builder] Duplexers
I've never had a problem. I would say that if the duplexers are out of tune on the transmit side there is a possibility that they might get hot, then cool off. This may cause them to take in moist air and cause condensation. I've never seen it happen, but I can see how it could. 73, Jow, K1ike On 8/31/2010 2:05 PM, ka9qjg wrote: OK Great , Thanks to Everyone who answered , I will sleep better now one less thing to worry about
RE: [Repeater-Builder] Duplexers
Has anyone mentioned band-pass cavities? One on the RX side could be enough and one more on the TX would do it for sure. There're some for 220 for less then a $100 on ebay right now. This might sound off the wall but I once saw a DB4021 UHF band-pass cavity tune up quite well on 2 meters!!! Only about .6db insertion loss on 2 meters. So if you have a VHF or UHF band-pass I would try sweeping it with the resonator in a few different spots and see if you find any harmonics near your target frequency. And I would only do this on the RX side. That UHF cavity tuned to 2 meters did get warmer then the other db4001's, probably an impedance issue. Forgot to mention the swr on that cavity was about 1.3 . So is this the worst practice ever, or what happened? ~Ross -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Mackey Sent: Monday, August 30, 2010 4:44 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Duplexers Our club was recently given a 220 repeater. We have two seperate antennas. We do not have a duplexer. My question is do we have to have a duplexer? How can we keep the transmitter from desensitizing the receiver? The antennas are apart but can be moved farther. Thanks Chris Kg4bek
Re: [Repeater-Builder] Duplexers
My 2 duplexers are in a space with no heat and no air .. and no problems Keep them off a COLD floor and you should be fine as they can move with the temp in the room they are in On Tue, Aug 31, 2010 at 1:42 PM, ka9qjg ka9...@wowway.com wrote: Wow this must of Really been a Dumb question , No one answered it Don KA9QJG *From:* Repeater-Builder@yahoogroups.com [mailto: repeater-buil...@yahoogroups.com] *On Behalf Of *ka9qjg *Sent:* Monday, August 30, 2010 9:07 PM *To:* Repeater-Builder@yahoogroups.com *Subject:* RE: [Repeater-Builder] Duplexers Since We are on the Topic of Duplexers, And some claim there is no such thing as a Dumb Question but at the Risk of Asking one I will take a chance , I have the Wacom 4 can on My 220 System, The Question I have in a non controlled environment such as No Heat or Air Will the Duplexer have any problems inside with Condensation from Heating up in use and Cooling down Thanks Don KA9QJG
Re: [Repeater-Builder] Duplexers
Thats the same duplexer I had .. built my Bob Mortorn when he was at sinclair .. never had that problem here though Rick va3rzs On Tue, Aug 31, 2010 at 2:17 PM, Roger Stacey va...@telus.net wrote: On Vancouver Island B.C we do have humidity. The site is at 4400 ft. Roger VA7RS - Original Message - From: Chris Fowler k...@k4fh.com k4fh%40k4fh.com To: Repeater-Builder@yahoogroups.com Repeater-Builder%40yahoogroups.com Cc: ka9qjg ka9...@wowway.com KA9QJG%40WOWWAY.COM Sent: Tuesday, August 31, 2010 11:08 AM Subject: RE: [Repeater-Builder] Duplexers For there to be condensation there must be humidity in the air. The more humidity, the more condensation. Duplexers are in harsh environments now and I don't think it has been a problem. Condensation on the outside of the cans should not cause any issue for what is going inside. On Tue, 2010-08-31 at 12:42 -0500, ka9qjg wrote: Wow this must of Really been a Dumb question , No one answered it Don KA9QJG From:Repeater-Builder@yahoogroups.comRepeater-Builder%40yahoogroups.com [mailto:Repeater-Builder@yahoogroups.comRepeater-Builder%40yahoogroups.com] On Behalf Of ka9qjg Sent: Monday, August 30, 2010 9:07 PM To: Repeater-Builder@yahoogroups.comRepeater-Builder%40yahoogroups.com Subject: RE: [Repeater-Builder] Duplexers Since We are on the Topic of Duplexers, And some claim there is no such thing as a Dumb Question but at the Risk of Asking one I will take a chance , I have the Wacom 4 can on My 220 System, The Question I have in a non controlled environment such as No Heat or Air Will the Duplexer have any problems inside with Condensation from Heating up in use and Cooling down Thanks Don KA9QJG Yahoo! Groups Links -- No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.851 / Virus Database: 271.1.1/3104 - Release Date: 08/30/10 23:34:00
[Repeater-Builder] GE MII high power metering
Fellows, Looking for a metering panel for a high power GE MII or MPro station. These are found on the cabinets housing the 330W tube-type PA's. I have a few PA's around, but no metering for them. I'd like to find enough panels to make all my PA's complete. It makes no difference if this is from a Low-Band, VHF, or UHF high power station. Let me know what you've got and how much $$. Thanks, Scott Scott Zimmerman Amateur Radio Call N3XCC 474 Barnett Road Boswell, PA 15531
Re: [Repeater-Builder] Duplexers
Don, this is a natural response, or lack thereof. If you ask, will I have this problem, and nobody else has had it, that doesn't mean they can guarantee YOU won't have it, so they refrain from commenting. I learned a lot from my experience with one outdoor, rooftop repeater I built. I was expecting condensation in places where I could find no evidence of it actually occurring. It finally dawned on me that even if the ambient humidity is 100%, and condensation is collecting on the outside of the cabinet, the equipment inside is safe as long as the temp there remains even slightly above the outside. If you have to mount the duplexers away from the transmitter and power supply, condensation may be more difficult to control. Whenever possible, I will always try to keep the cans (and all the equipment) slightly warmer than outside ambient. I believe that in most installations, even in non-climate-controlled buildings, this is likely to happen by default, especially if you are co-sited with lots of other people's stuff. On my rooftop repeater, I ended up using a completely sealed, gasketed steel cabinet, painted a light color, with no vents to the outside whatsoever, and relied on plain old heat loss through the cabinet walls for dissipation. When I changed out my 2-watt, solar-powered, Repco UHF repeater for a 35-watt, converted GE Mastr II powered from the AC mains, I expected problems, so I put a 119ºF attic fan switch on the transmitter's heatsink, wired to a logic input on the controller. It never triggered, even in the summer, and this was in orlando, FL. The commercial stuff is based on components which were designed to stay happy for years locked in a car trunk. It may be possible to overdo ventilation. I think I'd rather err on the side of staying a little warm in a repeater shack, within reason. 73, Paul, AE4KR - Original Message - From: ka9qjg To: Repeater-Builder@yahoogroups.com Sent: Tuesday, August 31, 2010 11:42 AM Subject: RE: [Repeater-Builder] Duplexers Wow this must of Really been a Dumb question , No one answered it Will the Duplexer have any problems inside with Condensation from Heating up in use and Cooling down
Re: [Repeater-Builder] Moisture/condensation (was: Duplexers)
Condensation and moisture can be a strange thing... I have 2 meter and 440 repeaters in my own unheated building on a local hill. Several years ago in the middle of a cold Maine winter, both repeaters started having assorted audio problems and controller glitches. Upon arriving at the site I was horrified to find a thick layer of white frost completely covering every surface inside the building. Floor, walls, ceiling, every bit of equipment, cables, everything pure white and hairy with frost. I scraped away some frost and removed the cover from the repeater controller cabinet... and was even more horrified to find the controller PCB completely covered in frost! Couldn't even recognize the larger individual components on the board... What to do? I VERY slowly brought up the building temperature with a temporary heater over a period of a few days. The frost slowly vanished, not so much by melting and forming water but by dissipating into the air. Everything returned to functioning normally. The funny thing is, it never happened before or since. Just that one time. I never did figure out exactly what conditions caused it. Paul N1BUG
Re: [Repeater-Builder] Moisture/condensation (was: Duplexers)
Wow...sounds like somehow, moisture was released inside the building. If it's 20ºF outside the building, and 22ºF inside the building, it's hard to imagine how frost could form on the equipment, since the relative humidity indors would have to be lower, unless...there was water forced up through a crack in the floor, etc. 73, Paul, AE4KR - Original Message - From: N1BUG To: Repeater-Builder@yahoogroups.com Sent: Tuesday, August 31, 2010 4:52 PM Subject: Re: [Repeater-Builder] Moisture/condensation (was: Duplexers) Condensation and moisture can be a strange thing... I have 2 meter and 440 repeaters in my own unheated building on a local hill. Several years ago in the middle of a cold Maine winter, both repeaters started having assorted audio problems and controller glitches. Upon arriving at the site I was horrified to find a thick layer of white frost completely covering every surface inside the building. Floor, walls, ceiling, every bit of equipment, cables, everything pure white and hairy with frost. I scraped away some frost and removed the cover from the repeater controller cabinet... and was even more horrified to find the controller PCB completely covered in frost! Couldn't even recognize the larger individual components on the board... What to do? I VERY slowly brought up the building temperature with a temporary heater over a period of a few days. The frost slowly vanished, not so much by melting and forming water but by dissipating into the air. Everything returned to functioning normally. The funny thing is, it never happened before or since. Just that one time. I never did figure out exactly what conditions caused it. Paul N1BUG
Re: Re: [Repeater-Builder] Running a Mastr II Repeater QRP
WE did about the same thing but the cabinet was in the basement and it had to go up a circular staircase. Plus we did not have enough room to keep it away from the wall. So we spent a lot of time taking it apart and then going back together was easier. Much lighter with out everything in it. Butch, KE7FEL/r On Tue, Aug 31, 2010 at 10:21 AM, dmur...@verizon.net wrote: Installed a MSTR II VHF repeater in a six foot cabinet on top of a 17 story building. The elevator got me to the 14th floor but it took 4 of us to get it the other 3 flights. It is possible to haul without a hoist. Next time I do something like this I'm going to remove the repeater and power supply and carry the parts, not the whole repeater. ..._._ Aug 31, 2010 01:14:00 AM, Repeater-Builder@yahoogroups.comRepeater-Builder%40yahoogroups.comwrote: On 8/30/2010 7:01 PM, Paul Plack wrote: I already know I'd love to have a MII, and the bulk won't be an issue getting it home or storing it, but the proposed site is on a rooftop. That part could get interesting. I may need to devise a truss...and something to hoist the repeater, too! (Rimshot.) LOL! Especially if you're using the MASTR II power supply. Be aware that the M2 PS will draw quite a bit of current even at idle... if you're paying the power bill, or care about someone who does... I have one on in my basement for a link all the time, and live with it... :-)
Re: [Repeater-Builder] Re: wouxun
At 8/31/2010 07:12, you wrote: Also saw a posting on e-ham that indicated only -30 dBc on harmonic spurious for the UHF side (I assume that's 2nd harmonic). I have an early KG-UVD1P (short DTMF burst) and an KG-UVD2D and can confirm this is not the case on neither radio, I measured -60dBc which makes them legal here. Good to know that the harmonic spurious is the same on VHF UHF - thanks. Since you have both, can you shed some light on the differences between the KG-UVD1P KG-UVD2D? Bob NO6B
Re: [Repeater-Builder] Moisture/condensation
Yeah... it was strange. The building sits up off the ground and there were no holes for water entry. Snow outside, but ground under the building was bone dry. There had been a rainy spell a week or two earlier. The only thing I can think of is very moist air was trapped in the building when the temperature dropped. It must have been a rather uncommon set of circumstances since it just happened that one time. It's hard to believe there could have been enough moisture in the air to form so much frost! Paul N1BUG Paul Plack wrote: Wow...sounds like somehow, moisture was released inside the building. If it's 20ºF outside the building, and 22ºF inside the building, it's hard to imagine how frost could form on the equipment, since the relative humidity indors would have to be lower, unless...there was water forced up through a crack in the floor, etc. 73, Paul, AE4KR
Re: [Repeater-Builder] Duplexers
If the transmiter is sometimes desensitizing the receiver,then re tune the or readjust the duplexeur. --- On Tue, 8/31/10, cmcclel...@aol.com cmcclel...@aol.com wrote: From: cmcclel...@aol.com cmcclel...@aol.com Subject: Re: [Repeater-Builder] Duplexers To: Repeater-Builder@yahoogroups.com Date: Tuesday, August 31, 2010, 2:44 AM Thank you for your response. The problem is that the repeater is located on top of a building and the tower on that building is only about 20 feet tall. We can move the two antennas apart horizontally, but only 20 feet vertically. Duplexers are way too expensive and hard to find for the 200 Mhz band. We are running about 20 watts and the frequency separation is 1.6 mhz. Sometimes a week signal comes in and sometimes the transceiver is desensitizing the receiver and covers it up. Any suggestions? Thanks Chris In a message dated 8/30/2010 8:36:53 P.M. Eastern Daylight Time, wb6...@verizon.net writes: Chris, You do not have to use a duplexer, but it makes building a repeater SO much easier! Keep in mind that antenna separation usually means vertical separation, not horizontal separation. Moreover, the same isolation provided by 1000 feet of horizontal separation might be provided by 10 feet of vertical separation. The amount of isolation you need is based generally on the transmit power, frequency separation between TX and RX, and the sensitivity of the receiver. The receiver bandwidth and antenna types also play a factor. 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Mackey Sent: Monday, August 30, 2010 4:44 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Duplexers Our club was recently given a 220 repeater. We have two seperate antennas. We do not have a duplexer. My question is do we have to have a duplexer? How can we keep the transmitter from desensitizing the receiver? The antennas are apart but can be moved farther. Thanks Chris Kg4bek
[Repeater-Builder] EXEC2 PA question
Hi all. Looking for some advice on exec2 pa variations. The 35-60 watt version is my choice for making 2 and 440 repeaters. I recently noticed a variation in the power control method. One had the stud mounted thermister with the black control module and one has just the pot for poower control My question is: for repeater service is the use of the thermister and module going to be problematic. Do they have a high failure rate? I have had some friends whol have had failures with theirs on Master2 PAs and have had to bypass the circuit. Just wondering if it is a good idea to go ahead and just bypass now instead waiting until later if there is a high failure rate. The repeater is not local. Appreciate any advise. PSE email direct to dwmcg...@bellsouth.net Thanks , Dale K0JXI
Re: [Repeater-Builder] DB212-3
NORM KNAPP nkn...@twowayradio.net wrote: Took down a set of DB212-3 dipoles in good shape with harness. I want to use them on 6m for a repeater antenna. I also want to add one additional dipole. I guess I will need to modify the harness and the dipoles as they are marked for 35.960 mhz I will be mounting all four (or 3) on one leg of a tower that is 4 feet on a face. Is it worth my while to go for the 4th dippole? The loops are 155 inches from tip to tip now. Looks like they need to be about 105 inches. Anyone with any tips, pointers or advise? Thanks Hi Norm...I've used a few sets of the db212s and can say that they are real hard to beat. If the tower is 3 sided use the -3 and shorten the trombones and harness. If the tower has 4 legs, use all 4 antennas and make up 3 harnesses for 2 antennas each. If you are in an area which has a lot of blowing sand, consider wrapping the trombones in good poly tape to reduce static. I know the antennas are grounded, but it does make a difference. Also, when placing the antennas on a tower, use one antenna stuffed between the other 2 to make a good field spacing of the antennas. This would result in a spacing of about 0.8 wavelength. Remember these antennas must be tuned against a suitable tower, not in free air, and a couple of wavelengths off the ground. If you don't understand the 3 pairs harness, remember that antennas 1 and2 will be paired; antennas 3 and 4 will be paired; and pair1,2 and pair 3,4 will be paired . Thus 3 pairs! good luck Jeff N5SXQ
